ELISTHERM heat/cold meters measure the absolute values of heat or cold transmitted by heating or cooling water in closed hot water or cooling systems. These systems consist of an ultrasonic or electromagnetic flow meter, paired resistance temperature sensors and a calorimetric counter. They measure and register the amount of heat/cold in water by calculation in a calorimetric counter from the measured water flow and temperature difference of water in the inlet and outlet piping.
Heat and cold meters are used as invoicing meters of absolute heat and cold in closed heating and cooling systems. The heat/cold meter consists of flow meter coupled with platinum temperature sensors and calorimetric counter.